Question

Arrange the following countries in descending order of population size:
A. China
B. Brazil
C. Bangladesh
D. Mexico
Choose the correct answer from the options given below:

• A. A, B, C, D
• B. A, C, B, D
• C. B, A, D, C
• D. C, B, D, A

Hint:

Key demographic ranking of world nations:
Top tier: India and China ($\approx 1.4\text{ billion}$).
Middle tier: USA ($\approx 335\text{ M}$), Indonesia ($\approx 275\text{ M}$), Pakistan ($\approx 240\text{ M}$), Nigeria ($\approx 225\text{ M}$), Brazil ($\approx 215\text{ M}$), Bangladesh ($\approx 170\text{ M}$), Russia ($\approx 144\text{ M}$), Mexico ($\approx 128\text{ M}$).

Answer 1

The Correct Option is A

Concept:
The global distribution of human population is characterized by extreme spatial concentration, with a substantial percentage of the world's inhabitants residing in a small group of demographically prominent nations.
Demographers and geographers systematically study national population counts based on official census enumerations and international United Nations demographic datasets.
Analyzing countries in descending order of population size requires ranking them sequentially from the highest absolute population to the lowest.

Step 1: Demographic Data Analysis for Listed Nations:
1. China (A): China is one of the two global demographic giants, with an estimated population exceeding $1.4\text{ billion}$ people, placing it at the very top of this group.
2. Brazil (B): As the most populous nation in South America, Brazil possesses a population of approximately $215\text{ million}$ inhabitants, ranking 7th globally.
3. Bangladesh (C): Located in South Asia, Bangladesh has an exceptionally high population density and an aggregate population of approximately $170\text{ million}$ inhabitants, ranking 8th globally.
4. Mexico (D): Situated in North America, Mexico has a total population of approximately $128\text{ million}$ people, ranking 10th globally.

Step 2: Determining the Correct Descending Sequence:
Arranging the given countries from largest to smallest population size yields:
\[ \text{China } (1.4\text{ B}) > \text{Brazil } (215\text{ M}) > \text{Bangladesh } (170\text{ M}) > \text{Mexico } (128\text{ M}) \] This corresponds precisely to the alphabetical sequence: A, B, C, D.
Final Answer:
Therefore, the correct arrangement in descending order is A, B, C, D.